A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is

Options

(a) 1m/s²
(b) 7 m/s²
(c) 17 m/s²
(d) 5 m/s²

Correct Answer:

5 m/s²

Explanation:

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